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Best glass block pros near Potomac, MD

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Top-Rated Glass block pros in Potomac - Updated Nov 2026

Avatar for A.R. Glass Repairs
A.R. Glass Repairs
5.0(
22
)
Stained or Specialty Glass - Repair

Serving Potomac, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"A. R. Glass did a fantastic job. Instead of having to replace my windows, they were able to come in and replace the glass for considerable savings. I would definitely have them come again. In fact, I had them come for a second job already."
Response time1 day
Response rate100%
Recommended by85%of homeowners
Avatar for Castle The Window People - Mid Atlantic
Castle The Window People - Mid Atlantic
4.6(
14
)
Glass Blocks - InstallGlass Blocks - Install - For Business

Serving Potomac, MD and surrounding areas

Approved

In business since 1991

Free estimates

Warranties offered

"I hired this company. They sent me a very professional sales person who spent time with us to show us what they could do to replace just the two leaded glass panels in our solid wood front =door. We were very pleased with the salesman and he gave us lots of information, answered all our questions. We will be visited by the project manager next week to take measurements and then they manufacture the panels and will install them when they are completed."
A taste of American Craftsman
Curb Appeal
Perfect Example
Beauty and Security
Practical

+30

Response time1 day
Response rate100%
185 neighbors recently requested a quote
Avatar for Jim Ness
Jim Ness
4.8(
27
)
Glass Blocks - Install

Serving Potomac, MD and surrounding areas

Approved

In business since 1985

Free estimates

Credit card accepted

"Man sent to do various odd jobs in Germantown--install blinds, TV mount, cabinet, etc.--was efficient and easy to communicate with. Did exactly what I needed with quality work and kept me informed of any problems he encountered. Price was reasonable."
Shower tile work and rot
Shower tile work and rot
Shower tile work and rot
Shower tile work and rot
Jumbo Lego style Wall

+13

Response time1 day
Recommended by92%of homeowners
Avatar for J & W Brown Contracting, LLC
J & W Brown Contracting, LLC
4.6(
26
)
Glass Blocks - Install

Serving Potomac, MD and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"J&W did a wonderful job building my brick steps and concrete walk way to the front of my home. A quick quote and a great price considering the current market for bricks and concrete. Mr. Brown went the extra mile and I will be utilizing this company next week to replace the side entrance steps. I highly recommend!"
Remod
Remod
Remod
Remod
Remod

+6

114 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Cali Home Improvement
Cali Home Improvement
4.9(
4
)
Glass Blocks - Install - For Business

Serving Potomac, MD and surrounding areas

Approved

In business since 2014

Free estimates

Small jobs welcome

"Mr Serapio was very professional and he took the time to answer my questions regarding the condition of my Gutter before proceeding. He was punctual and work to complete the job in a timely manner. I would highly recommend him to others."
Response time10 hrs
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for C&S Custom Shower Doors LLC
C&S Custom Shower Doors LLC
4.7(
51
)
Stained or Specialty Glass - Repair

Serving Potomac, MD and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"They were very knowledgeable and courteous. They removed the old shower door and frame, cleaned up, and installed new one in 2 hours. Followed up throughout process from initial meeting to delivery of glass to install and completion."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by97%of homeowners
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Glass Block FAQs, answered by experts

New glass costs anywhere from $3 to $100 per square foot. More specifically, tempered and insulated glass—a common option for sliding glass doors—costs between $10 and $14 per square foot.

Installing glass block windows has benefits and disadvantages, as with most materials. The pros and cons can vary depending on the type of glass block and the window location.

Pros

  • Maintains privacy while letting light into the bathroom

  • Energy efficient

  • Sealed to prevent drafts

  • Aesthetically pleasing

  • Strong and secure

Cons

  • Costly to install

  • Challenging installation

  • Challenging repair

Most installations take 1-3 days, depending on the number of blocks and customization requirements.

Yes, many professionals provide custom-cut glass replacements for enclosures that require precise sizing.

Glass block installation can be relatively expensive due to the range of material costs and the labor time to assemble this type of specialty window. The process proceeds slowly as the glass does not absorb moisture from mortar and silicone caulk takes longer to harden, leaving spacers to hold up the structure until the caulk or mortar begins to cure. Plus, if your current windows have structural issues or damage, you’ll need to repair them before beginning the project, increasing your bottom line. 

The Potomac, MD homeowners’ guide to glass block services

From average costs to expert advice, get all the answers you need to get your job done.